EPA Vintaging Model Summary

Total Flooding Alternatives

2012 Installed Base = 27 million kg Halon 1301 equivalent (by weight)

HFC-227ea

15% of installed base = 6,075,000 kg = 13,365,000 pounds (.15 x 27 M kg x 1.5 for weight difference)

EPA estimate of 2012 emissions = 334,125 pounds (2.5% emission factor x 13.365 M pounds)

Note: Estimate is in the same range as 2012 HEEP data

EPA estimate of 2010 consumption (sales + recycle) = 490 metric tons = 1,078,000 pounds

EPA estimate of 2015 consumption (sales + recycle) = 576 metric tons = 1,267,200 pounds

HFC-125

8% of installed base = 2,160,000 kg = 4,752,000 pounds (using a 1.0 weight difference)

EPA estimate of 2012 emissions = 118,000 pounds

Note: Estimate is orders of magnitude higher than HEEP data and seems too high when compared to HFC-227ea

EPA estimate of 2010 consumption = 350 metric tons = 770,000 pounds

EPA estimate of 2015 consumption = 422 metric tons = 928,400 pounds

FK-5-1-12

2% of installed base = 702,000 kg = 1,544,400 pounds (using a 1.3 weight difference)

EPA estimate of 2012 emissions = 38,610 pounds

Note: HEEP does not collect data on recharge sales of FK-5-1-12

EPA estimate of 2010 consumption = 186 metric tons = 409,200 pounds

EPA estimate of 2015 consumption = 227 metric tons = 499,400 pounds

HFC-23

Less than 0.5% of installed base

EPA estimate of 2010 consumption = 8 metric tons = 17,600 pounds

EPA estimate of 2015 consumption = 9 metric tons = 19,800 pounds

PFC-3-1-10 (C4F10)

Less than 0.5% of installed base

EPA estimate of 2010 consumption = 2 metric tons = 4,400 pounds

EPA estimate of 2015 consumption = 2 metric tons = 4,400 pounds

Note: Very large GWP multiplier for HFC-23 and PFC-3-1-10 can increase impact on HEEP data of small emissions

Streaming Agent Alternatives

2012 Installed Base = 32 million kg of Halon 1211 equivalent (by weight)

HCFC Blend B (Halotron)

6% of installed base = 2,880,000 kg = 6,336,600 pounds (using a 1.5 weight difference)

EPA estimate of 2012 emissions = 221,760 pounds (3.5% emission factor x 6.3366 M pounds)

Note: HEEP does not collect data on recharge sales of HCFC Blend B

EPA estimate of 2010 consumption = 242 metric tons = 532,400 pounds

EPA estimate of 2015 consumption = 280 metric tons = 616,000 pounds

HFC-236fa

3% of installed base = 1,248,000 kg = 2,745,600 pounds (using a 1.3 weight difference)

EPA estimate of 2012 emissions = 96,096 pounds

Note: Estimate is significantly higher than HEEP data

EPA estimate of 2010 consumption = 117 metric tons = 257,400 pounds

EPA estimate of 2015 consumption = 136 metric tons = 299,200 pounds

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